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Chemical Properties of Metals

Question 3iii...

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Question 3(iii)
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:
$\begin{matrix} M e t a l & I r o n (I I) s u l p h a t e & C o o p e r (I I) s u l p h a t e & Z i n c s u l p h a t e & S i l v e r n i t r a t e A . & N o r e a c t i o n & D i s p l a c e m e n t B . & D i s p l a c e m e n t & N o r e a c t i o n C . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & D i s p l a c e m e n t D . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n \end{matrix}$
Use the Table above to answer the following questions about metals A, B, C and D.
(iii) Arrange the metals A, B, C and D in the decreasing order of reactivity.

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Solution

(iii) Arrangement of metals in the decreasing order of reactivity: B > A > C > D

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Q. Question 3(ii)
Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows:

\begin{matrix} M e t a l & I r o n (I I) s u l p h a t e & C o o p e r (I I) s u l p h a t e & Z i n c s u l p h a t e & S i l v e r n i t r a t e A . & N o r e a c t i o n & D i s p l a c e m e n t B . & D i s p l a c e m e n t & N o r e a c t i o n C . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & D i s p l a c e m e n t D . & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n & N o r e a c t i o n \end{matrix}

Use the Table above to answer the following questions about metals A, B, C and D.
(ii) What would you observe if B is added to a solution of copper (II) sulphate?

A

B

C

D

are in turn added to the following solutions one by one. The observations made are tabulated below.

Metal	Iron (II) sulphate	Copper (II) sulphate	Zinc sulphate	Silver nitrate
A	No reaction	Displacement	-	-
B	Displacement	-	No reaction	-
C	No reaction	No reaction	No reaction	Displacement
D	No reaction	No reaction	No reaction	No reaction

Answer the following based on the above information :
(i) Which is the most reactive metal? Why?
(ii) What would be observed, if '

B

' is added to a solution of Copper (II) sulphate and why?
(iii) Arrange the metals

A

B

C

D

in order of increasing reactivity.
(iv) Which one among

A

B

C

D

metals can be used to make containers that can be used to store any of the above solutions safely?

Q. Sample of four metals

A, B, C

D

were taken and added to the following solution one by one. The results obtained have been tabulated as follows :

Metal	Iron $(I I)$ Sulphate	Copper $(I I)$ Sulphate	Zinc Sulphate	Silver Nitrate
A	No reaction	Displacement
B			Displacement
C	No reaction	No reaction	No reaction	Displacement
D				No reaction

Use the table above to answer the questions about metal

A, B, C

D

.
Arrange the metals

A, B, C

D

in order of decreasing reactivity.

Q. Sample of four metals

A, B, C

D

were taken and added to the following solution one by one. The results obtained have been tabulated as follows :

Metal	Iron $(I I)$ Sulphate	Copper $(I I)$ Sulphate	Zinc Sulphate	Silver Nitrate
A	No reaction	Displacement
B			Displacement
C	No reaction	No reaction	No reaction	Displacement
D				No reaction

Use the table above to answer the questions about metal

A, B, C

D

.
What would you observe when

B

is added to a solution of Copper

(I I)

Z n, F e, C u

A l

are taken and added to the following solutions one by one. The results obtained are tabulated below:

Metal	$Z n S O_{4} (a q)$	$F e S O_{4} (a q)$	$C u S O_{4} (a q)$	$A l_{2} (S O_{4})_{3} (a q)$
$Z n$	-	Displaced	Displaced	No reaction
$F e$	No reaction	-	Displaced	No reaction
$C u$	No reaction	No reaction	-	No reaction
$A l$	Displaced	Displaced	Displaced	-

From the above data, the decreasing order of reactivity of metals is-

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